1 /* $OpenBSD: kvm_ntfs.c,v 1.6 2021/09/10 00:02:43 deraadt Exp $ */
2
3 /*-
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jaromir Dolecek.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/types.h>
33 #include <sys/time.h>
34 #include <sys/ucred.h>
35 #define _KERNEL
36 #include <sys/mount.h>
37 #undef _KERNEL
38 #include <sys/vnode.h>
39 #include <sys/sysctl.h>
40
41 #include <ntfs/ntfs.h>
42 #include <ntfs/ntfs_inode.h>
43
44 #include <limits.h>
45 #include <kvm.h>
46 #include <db.h>
47
48 #include "kvm_private.h"
49 #include "kvm_file.h"
50
51 int
_kvm_stat_ntfs(kvm_t * kd,struct kinfo_file * kf,struct vnode * vp)52 _kvm_stat_ntfs(kvm_t *kd, struct kinfo_file *kf, struct vnode *vp)
53 {
54 struct ntnode ntnode;
55 struct fnode fn;
56 struct ntfsmount ntm;
57
58 /*
59 * To get the ntnode, we have to go in two steps - firstly
60 * to read appropriate struct fnode and then getting the address
61 * of ntnode and reading it's contents
62 */
63 if (KREAD(kd, (u_long)VTOF(vp), &fn)) {
64 _kvm_err(kd, kd->program, "can't read fnode at %p", VTOF(vp));
65 return (-1);
66 }
67 if (KREAD(kd, (u_long)FTONT(&fn), &ntnode)) {
68 _kvm_err(kd, kd->program, "can't read ntnode at %p", FTONT(&fn));
69 return (-1);
70 }
71 if (KREAD(kd, (u_long)ntnode.i_mp, &ntm)) {
72 _kvm_err(kd, kd->program, "can't read ntfsmount at %p",
73 ntnode.i_mp);
74 return (-1);
75 }
76
77 kf->va_fsid = ntnode.i_dev & 0xffff;
78 kf->va_fileid = (long)ntnode.i_number;
79 kf->va_mode = (mode_t)ntm.ntm_mode | _kvm_getftype(vp->v_type);
80 kf->va_size = fn.f_size;
81 kf->va_rdev = 0; /* XXX */
82 kf->va_nlink = 1;
83
84 return (0);
85 }
86